260849139 has 8 divisors (see below), whose sum is σ = 368257680. Its totient is φ = 163670016.

The previous prime is 260849131. The next prime is 260849143. The reversal of 260849139 is 931948062.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 260849139 - 2³ = 260849131 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 260849139.

It is not an unprimeable number, because it can be changed into a prime (260849131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2557294 + ... + 2557395.

It is an arithmetic number, because the mean of its divisors is an integer number (46032210).

Almost surely, 2^260849139 is an apocalyptic number.

260849139 is a deficient number, since it is larger than the sum of its proper divisors (107408541).

260849139 is a wasteful number, since it uses less digits than its factorization.

260849139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5114709.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 260849139 is about 16150.8247157846. The cubic root of 260849139 is about 638.9444996259.

The spelling of 260849139 in words is "two hundred sixty million, eight hundred forty-nine thousand, one hundred thirty-nine".